A lot of streaming content is region-locked, which means if you're in the U.S., you can't watch content from other countries, or vice versa. Tunlr is a free DNS service that's simple to set up on any device, and that allows you to watch content from anywhere.

Whether you're from outside the U.S. and want to watch Netflix, or from inside the U.S. and want to use something like the BBC iPlayer, Tunlr works. All you need to do is change your DNS settings on your device, and you're good to go. The best part is that unlike other solutions for watching the Olympics, or the BBC, Tunlr is completely free, and only requires a couple seconds to set up. Not all services are supported, but a wide variety work just fine (the BBC's iPlayer works fine in the U.S.).